Mathematics, 11.05.2021 17:40, pruittjr5161
Efectuați calculele și scrieți rezultatul în forma cea mai simplă: a) (–2 + 1) + 3( –2); b) (2 + 3)( – 1) + (3 – 2)(– + 5); c) (–5 + 2)(3 – 1) + (15 + 7)( – 3); d) ( – 1)(–5 + 3) + 5( – 1); e) ( + 2)(2 – 2 + 4) – 3 + 8; f) (2 –1)(42 + 2 + 1) + 1 – 83.
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Efectuați calculele și scrieți rezultatul în forma cea mai simplă: a) (–2 + 1) + 3( –2); b) (2 + 3)(...
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